Wire clamping tool for tensioning, twisting and severing



Jan. 8, 1963 c. E. HUNZIKER 3,07 6

WIRE CLAMPING TOOL FOR TENSIONING TWISTING AND SEVERING Filed Aug. 4, 1960 2 Sheets-Sheet 1 /7 4 4o /9 i 25 5 4 9 A Z 4 l4 mmvroa f 5 (A/42L s5 5. Hl/A/Z/KEP 5 3,072,156 Patented Jan. 8, 1963 dire 3,072,156 WIRE CLAMPING TOOL FOR TENSIONING, TWISTING AND SEVERING Charles E. Hunziker, 174 Paramus Road, Paramus, NJ. Filed Aug. 4, 1960, Ser. No. 47,462 Claims. (Cl. 140-4235) My invention relates to tools and more particularly to a tool operable for stretching and clamping wire or the like about an object.

One of the objects of my invention is to provide a wire stretching and clamping tool which is capable of being readily associated with an object in a manner for clampmg and maintaining wire about the object upon severing of the excess end sections of the Wire.

Another object of my invention is to provide a tool of the foregoing described character which is operable for convoluting or twisting the end sections of wire together to clamp the wire about an object and in a manner wherein the excess of the end sections are severed outwardly of and adjacent the outermost convolutions to preclude severance or breakage of the wire at the initial point of twist.

A further object of my invention is to provide a tool of the foregoing described character which is readily adaptable for use in clamping wire within channels of various objects, for instance, filter leafs.

An important object of my invention is to provide a tool of the foregoing character which is simple in construction, durable in use, efficient in operation, economical in manufacture, and capable of being employed by other than highly skilled labor.

With the above and other objects in view, as will hereinafter appear, the invention consists in the combination and arrangement of parts hereinafter set forth and illustrated in the accompanying drawings from which the several features of the invention and the advantages attained thereby will be readily understood by those skilled in the art.

Referring to the drawings wherein like reference characters designate like par-ts throughout the several views:

FIGURE 1 is a side elevation of my invention as applied to a filter leaf;

FIGURE 2 is a top plan view thereof;

FIGURE 3 is a sectional View taken on the line 33 of FIGURE 2; and

FIGURE 4 is a sctional view taken on the line 4-4 of FIGURE 3.

As illustrated in the drawings, my novel form of tool comprises a gudgeon or block 4 having rotatably mounted on one end portion 5, by means of a ball bearing assembly 6, a hub 7. The portion 5 is provided with a shoulder 8 on which is seated the assembly 6 and is formed with a centrally disposed wire receiving passage or bore 9 having an outer flared end 10. The opposite end portion .1 1 of the gudgeon 4 is bifurcated and defines a pair of spaced branches or fingers 12 adapted to straddle an object, for instance, the channelled rim 1% of a filter leaf 14 for mounting the tool on the leaf as illustrated in the drawings.

In the present instance, the filter leaf 14 is provided with filtering screens 15 having margins disposed over the sides of the rim and extending into the outer channel thereof for clamping therein by means of a length of wire W.

The hub 7 is formed with a pair of oppositely disposed arms 16 and 17, respectively, extending upwardly and outwardly from the hub and with the arm 17 being formed with a transverse opening 18 for accommodating therethrough one end section 19 of the wire W. The other arm 16 is provided with a bore 20 in which is slidably mounted a rod 21 having its inner end disposed out of the bore and formed with a transverse opening 22 in proximity to the hub for receiving therethrough the other end section 23 of the wire W. The other or outer end of the rod '21 extends outwardly through the outer end of the arm 16 and has threaded thereon an adjusting nut 24 for engaging the outer end of the arm for moving the rod relative to the arm upon rotation of the nut. One face of the arm d6 is formed with a slot in which is received a pin 25 carried by the rod 21 and which pin serves to engage the ends of the slot for limiting the movement of the rod within the bore and preclude accidental removal of the rod therefrom.

In use assuming that the length of Wire W is disposed within the channel of the rim '13 to provide a clamping run about the screens therein, the end sections of the wire extend outwardly from the run through the bore 9 with the end section 19 disposed through the opening 13 of the arm 17 and the end section 23 inserted through the opening 22 of the rod 21 and the ends of both sections bent to preclude displacement from the openings, and the nut 24 manipulated to move the rod outwardly within the bore 20 and thus dispose the section 23 in a somewhat .taut condition-the hub 7 is rotated upon the gudgeon 4 by pressure applied to the arms 16 and 17 with the result that the end .sections 19 and 23 are twisted or wound together to form entwined interlocked convolutions progressively outwardly from the clamping run within the channel. The convolu-tions continue to multiply outwardly until such time as the stress applied to the end sections effects breakage thereof adjacent the outermost convolutions as depicted in FIGURE 4 of the drawings. However, the wire may be manually severed immediately adjacent the outermost convolutions if it is deemed that the wire is sufficiently twisted to maintain its clamped condition about the rim or other object. When the wire is thus broken or severed, the convoluted end sections serve to hold the wire in a clamped condition about the rim, the end sections being forced or tucked into the channel and out of the way, if desired. Obviously, wire thus clamped about a rim may be readily removed by severing the convoluted end sections from the clamping run. Moreover, upon the completion of a clamping and twisting operation, all wire is removed from the openings 18 and 22 for clearing the same for use in connection with another wire clamping operation. By adjusting the rod relative to the arm 16, the end sections may be severed at a selected location, the rod functioning to vary the distance of the Wire between the rod and the bore of the hub.

Without further elaboration, the foregoing will so fully explain the invention that others ma by applying current knowledge, readily adapt the same for use under various conditions of service. Moreover, it is not indispensable that all the features of the invention be used conjointly since they may be employed advantageously in various combinations and subcombinations.

It is obvious that the invention is not confined solely to the use herein disclosed in connection therewith as it may be utilized for any purpose to which it is adaptable. -It is, therefore, to be understood that the invention is not limited to the specific construction as illustrated and described, as the same is only illustrative of the principles involved which are capable of extended application in various forms, and the invention comprehends all construction within the scope of the appended claims.

What I claim is:

l. A wire clamping .tool comprising, a pair of coaxially disposed relatively rotatable members adapted to be mounted adjacent an object equipped with clamping wire having end sections extending outwardly from the object,

said members being provided with an axial wire receiving passageadapted to receive the end sections therethrough, one of said members having spaced wire anchoring means disposed laterally outwardly of said passage and adapted to be fixedly anchored to the. end sections, respectively, whereby, when said means is so anchored to the end sections, said members are rendered effective upon relative rotation to form the end sections with entwined interlocked convolutions progressively outwardly from the object to thus clamp the wire about the object and, upon continued relative rotation, sever the end sections at a location prejacent the outermost convolution to thereby maintain the wire clamped about the object after the severance.

2. -.A wire clamping tool comprising, a pair of coaxially relatively rotatable members adapted to be mounted adjacent an object equipped with clamping wire having end sections extending outwardly from the object, said members being provided with an axial wire receiving passage adapted to receive the end sections therethrough, one'of said members having spaced wire anchoring openings disposed laterally outwardly of said passage and adapted to receive the end sections, respectively, to fixedly anchor the end sections to said one member, whereby, when the latter is so anchored, said members are rendered efiective upon relative rotation to form the end sections with entwined interlocked convolutions progressively outwardly from the object to thus clamp the wire about the object and, upon continued relative rotation, sever the end sections at a location prejacent the outermost convolution to thereby maintain the wire clamped about the object after the severance.

3. A wire clamping tool comprising, a pair of coaxially disposed relatively rotatable members adapted to be mounted adjacent an object equipped with clamping Wire having end sections extending outwardly from the object, said members being provided with an axial wire receiving passage adapted to receive the end sections therethrough, one of said members having spaced wire anchoring means disposed latera'lly outwardly of said passage and adapted to be fixedly anchored to the end sections, respectively, whereby, when said means is so anchored to the end'sections, said members are rendered effective upon relative rotation to form the end sections with entwined interlocked convolutions progressively outwardly from the object to thus clamp the wire about the object, said wire anchoring means including an adjustable member adjustable relative to said passage and being effective, upon continued relative rotation of said first mentioned members, to sever the end sections at a location prejacent the outermost convolution to thereby maintain the wire clamped about the object after the severance.

4. A wire clamping tool, comprising a pair of coaxially disposed relatively rotatable members adapted to be mounted adjacent an object equipped with clamping wire having a pair of end sections extending outwardly from the obiect, said members being provided with an axial wire receiving passage adapted to receive the end sections therethrough from the object, one of said members being provided with a pair of spaced fingers adapted to straddle the object to preclude relative rotation therebetween and dispose said passage in proximity to the object, the other of said members being provided with a pair of spaced laterally outwardly extending arms for rotating said other member, one of said arms being formed with a wire anchoring opening adapted to receive and fixedly anchor one of the sections to said arm, the other of said arms being provided with a bore, a rod mounted within said bore in spaced relation with said passage for rotation with said arms and formed with a wire anchoring opening adapted to receive and fixedly anchor the other of said sections to said rod, whereby, when said one arm and said rod are so anchored to the end sections said arms are rendered effective upon relative rotation of said members to form the sections with entwined interlocked convolutions progressively outwardly from the object to thereby clamp the wire about the object, said rod being adjustable within said bore to vary the distance between said rod and said passage to alter the tension of said other section and thus eifect severance of the end sections, upon continued relative rotation of said members at a preselected location outwardly of the outermost convolution to thereby maintain the wire clamped about the object after severance.

5. In a wire clamping tool, a pair of coaxially disposed outer-and inner members having a common wire receiving bore and with said inner member adapted to be mounted in fixed relation with an object equipped with surrounding clamping Wire having a plurality of end sections extending thereform and through said bore, said outer member adapted to be fixedly anchored to the end sections in spaced relation to each of said bore, said outer member being rotatable relative to said inner member to form the end sections with entwined interlocked convolutions progressively outward from the object to clamp the wire therea bout and sever the end sections adjacent the outermost convolution to thereby maintain the wire clamped about the object after the severance.

References (Cited in the file of this patent UNITED STATES PATENTS 396,973 Barker Jan. 29, 1889 954,886 Rolston Apr. 12, 1910 1,005,804 Bright Oct. 17, 1911 1,598,345 Gunn Aug. 341, 1926 2,433,494 Van De Veer Dec. 30, 1947 2,687,752 Diggs Aug. 31, 1 954 other and laterally outwardly 

1. A WIRE CLAMPING TOOL COMPRISING, A PAIR OF COAXIALLY DISPOSED RELATIVELY ROTATABLE MEMBERS ADAPTED TO BE MOUNTED ADJACENT AN OBJECT EQUIPPED WITH CLAMPING WIRE HAVING END SECTIONS EXTENDING OUTWARDLY FROM THE OBJECT, SAID MEMBERS BEING PROVIDED WITH AN AXIAL WIRE RECEIVING PASSAGE ADAPTED TO RECEIVE THE END SECTIONS THERETHROUGH, ONE OF SAID MEMBERS HAVING SPACED WIRE ANCHORING MEANS DISPOSED LATERALLY OUTWARDLY OF SAID PASSAGE AND ADAPTED TO BE FIXEDLY ANCHORED TO THE END SECTIONS, RESPECTIVELY, WHEREBY, WHEN SAID MEANS IS SO ANCHORED TO THE END SECTIONS, SAID MEMBERS ARE RENDERED EFFECTIVE UPON RELATIVE ROTATION TO FORM THE END SECTIONS WITH ENTWINED INTERLOCKED CONVOLUTIONS PROGRESSIVELY OUTWARDLY FROM THE OBJECT TO THUS CLAMP THE WIRE ABOUT THE OBJECT AND, UPON CONTINUED RELATIVE ROTATION, SEVER THE END SECTIONS AT A LOCATION PREJACENT THE OUTERMOST CONVOLUTION TO THEREBY MAINTAIN THE WIRE CLAMPED ABOUT THE OBJECT AFTER THE SEVERANCE. 